Evaluating the Applicability of Fracture Criteria to Predict the Crack Evolution Path of Dolomite Based on SCB Experiments and FEM

Figure 8

SEM images of fractured surfaces of SCB and Brazilian test specimens with ×100 magnification.

(a) 𝛼=0^∘

(b) 𝛼=10^∘

(c) 𝛼=20^∘

(d) 𝛼=30^∘

(e) 𝛼=34.8^∘

(f) 𝛼=40^∘

(g) Failure surface of Brazilian splitting test